BYJUS SCIENCE GRADE 2 Flashcards
What is the medicinal role of a clove
Helps in Toothache
Name this flower
Chamomile
What is the importance of Chamomile flowers
Used in tea and helps to release stress
Turmeric is a stem
True or false
Turmeric is a root
What are the health benifits of turmeric
Helpful in flu and colds
Name this herb
Basil
What are the medical uses of Basil
Stomach problems
The Traditional Italian Pizza uses which herb
Basil
The brightest object in the night sky is the
Moon
Why dont we see the stars in the day sky
Because the sun is very bright
The sun appears to move from
East to west
When the sun is right at the centre it is known as
Noon
Name the structure on the tongue that gives us the sense of taste
Taste buds
The tiny bumps on the tongue are known as
Papillae
The taste buds contain tiny hair like structures that allow us to taste food
True or False
True
Animals with back bones are called
Vertebrates
Animals that do not have a back bone are Known as
Invertebrates
Do the invertebrates have a skeleton
No
Most of the animals on earth are Vertebrates
True or false
False
Most of the animals on earth are invertebrates
Name this creature
Star Fish
Name this sea creature
Jelly Fish
Name this sea creature
Octopus
Name three water invertebrates
- Star fish
- Jelly Fish
- Octopus
Invertebrates breathe through tiny openings all over the body is called
Spiracles
Invertebrates are cold blooded creatures
True or false
True
What is Force
Force is something that changes the motion of an object
There are two kinds of Force
Push and Pull
Force can change the direction of an object
True or False
True
What makes up a balanced diet
- Carbohydrate
- Protein
- fat
- Vitamins
- Monerals
Name this food
Pasta
Pasta is a carbohydrate
True or false
True
Name a fruit which is rich in healthy fats
Avocado
Eggs contains ?
Proteins
Name a Vegetable that is rich in vitamins and minerals
Broccoli
What is a Landform
It is the form or shape that the earth takes
Is mountain a Landform
Yes
The highest point on the mountain is called a
Peak
Name a landform made of soil and rocks
Mountain
Mountain peaks can be covered with
Snow
Name the tallest mountain in the world
Mount Everest
Mountains are found in chains. this chain of mountains is known as
Mountain Range
Land between hills or mountains, typically with a river or stream flowing through it.
Valley
Is valley a Landform
Yes
A group of stars that are joined together by imaginary lines is called
Constellations
How many fixed constellation are there
88
Fishes breathe underwater with the help of
Gills
Humans breathe with the help of
Lungs
Name the worlds oldest vertebrates
Fish
The three important features of a vertebrates
- have a protective skin covering
- Have lungs or gills for breathing
3Use fins, legs or wings for movement
Are insects vertebrates or invertebrates
Invertebrates
Most insect have a hard covering called
Exoskeleton
An insects body is divided into three parts. name them
- Head
- thorax
- Abdomen
Name an insect which have a very strong sense of smell
Bees
Do bees have a nose
No
How do most of the insects smell
with a pair of antenna
The antennae are attached to which part of the insects body
Head
Name this insect
Cricket
How do crickets make a chirping sound
By rubbing their wings together
name three insects that cannot fly
- Ants
2,Termites - Fleas
Name this insect
Termites
Name this insect
Flea
All adult insects have how many legs
six
The legs of the adult insect are attached to which part of the insect
Thorax
Why do the fireflies glow
They have a chemical that helps them glow
Most insects hatch from
Eggs
This flat and broad area on the earth is called a
Plain
Name this major landform on Earth
PLAIN
This liquid rock come from the inside of a volcano is called
Lava
The first Plains on earth was created by
Lava. Called as Lava Plains
What are Flood Plains
Ice and water flows down slopes of mountains and gets deposited on the land
Name a sense organ that helps us to touch and feels things
Skin
Name the five sense organs
- Nose
- Eyes
- ears
- Tongue
- Skin
How long does the earth take to rotate round its own axis
24 hours
Substances that are very hard and are very strong are called
Metals
What are the three states of matter
- Solids
- Liquids
- gases
The hottest part of the day is the
Noon
Is the time of sunrise or sunset fixed or does it change a little bit everyday
It changes a little bit everyday
Name a few woolen clothes
- Ear Muffs
- Gloves
- Winter boots
Some birds and insects move to warm places during winter. This is known as
MIGRATION
Gives two examples of animals that Migrate during winter
- Monarch Butterfly
- Humming birds
Name this butterfly
Monarch Butterfly
Some animals go into a deep long sleep during winter to save themselves from the cold . This is called
HIBERNATION
Name two animals that Hibernate
Bats and bears
They hibernate in caves
Why do winter roofs have to be sloping
Flat roofs will collapse under the weight of the snow
Winter homes should not be bult of stones
Because stone allows heat to escape out
What is an igloo made up of
Ice blocks
air is trapped in them and the air is an insulator of heat
Slanting roofs allows snow to slide off. This type of a roof is called
Gable roof
Can winter homes be made of wood
Yes. Wooden walls does not allow the heat inside to escape out
In winter are the days shorter or longer
Shorter
Is the earths axis straight or tilted
Tilted
Why do we get seasons
Because the earth revolves around the sun on a tilted axis
Why are days shorter in winter
The path taken by the sun from east to west is much shorter
When the temperature is high it is cold
True or False
False
When the temperature is high it is hot
At what temperature does water freeze to become ice
zero degree celcius
How many layers of clothing should we wear during winter
Three layers
1. Inner layer…Silk
2. Middle layer…wool
3. Outer layer….Jacket
Why should we wear loose clothes during winter
Loose clothing traps the heat inside
Name the four seasons in the correct order
- Summer
- Autumn
- Winter
- Spring
What is the importance of a Sun Screen
It protects our skin from damage by the sun
What are the requirements for Summer Wear
- Sun Glasses
- Light coloured cotton clothes
- Sun screen
- Water bottle
Why should we wear light coloured summer clothes
Light colours do not absorb heat
Name the fruits that should be eaten during summer
Watermelon
Berries
Melons
Name this fruit
Melons
Name a vegetable to be eaten in summer
Cucumber
what is a afternoon nap also known as
Siesta
When its too hot outside what should you do
Stay Indoors
Name the hottest season
Summer
Name summer foods that contain a lot of water
- Watermelon
- Tomatoes
- Mangoes
- berries
- Cucumber
- Plums
Name two cereals grown in summer
Rice and Maize
Name the juices to be had in summer
- Lemonade
- Tender coconut water
3.Water
When you cant predict what is going to happen it is called
Unpredictable
Name a season that can be unpredictable
Spring
In spring the weather can sunny, cloudy and rainy
Name a few spring diseases
- Pink eye
- Pollen allergy
3.Stomach bug
4,Flu
What brings about rain
The changes in the wind pattern
What is BREAK IN MONSOON
When it does not rain for a week in the monsoon
When does the monsoon season start
June till september
Most common disease during the monsoons is
Flu
Name two diseases that occur in the monsoons
- Flu
- Typhoid
How does the disease typhoid spread
Through food and water
Crops grown between June to september are called
KHARIF CROPS
Name the KHARIF CROPS
1,Rice
2. Maize
3. Cacao
4. Soybeans
Chocolate is obtained from which tree
Cacao Plant
The cacao plant gives beans called
Cocoa Beans
Name the Vegetables that grow during the monsoon
- Fiddlehead fern
- Alami Mushroom
- Teasel Gourd
Name this vegetable
Fiddlehead Fern
rain sometimes carries strong winds with it
True or False
True
Name some rain wear
- Umbrella
- rain coat
- Gumboots
The green pumpkin once ripened changes its colour to
Orange Pumpkin
Name this sea creature
Squid
Squid is an invertebrate
True or false
True
Name this living creature
Coral
Corals looks like beautiful plants or rocks. To which Kingdom do corals belong
Animal Kingdom
Corals are animals
Corals are made up of thousands of tiny animals called
Polyps
Corals are vertebrates
True or False
False
Corals are invertebrates
The largest coral reef in the world is the
Australian Great barrier Reef
The sound made by cows is called
Bawl
The sound made by cats
Purr
The sound made by Bears
Growl
The sound made by Dogs
Bark
The sound made by a Horse
Neigh
The sound made by a Lion
Roar
The sound made by a Sheep
Bleat
The BACKBONE is also known as
Spine
What are the three features of a mammal
- They give birth to live young ones
- They feed on their mothers milk
- Their bodies have fur or hair
Name this animal
Gazelle
Give four examples of mammals
- gazelle
- Dogs
- cats
- Humans
Animals that can live on water as well as land are known as
Amphibians
Name this creature
Caecelian
Name this animal
Salamander
Name three amphibians
- Frogs
- Salamander
- Caecelian
Who are reptiles
Reptiles are invertebrates who have a special skin made of hard and dry scales
Give five examples of reptiles
- Lizards
- Snakes
- Crocodiles
- Chameleon
- Turtles
Do reptiles lay eggs
Yes
Name the five different types of vertebrates
- mammals
- fish
- Reptiles
- Birds
- Amphibians
What are the five characteristics of all Living Things
G… they Grow
R….they Reproduce
E…..they Eat
A…..they breathe (Air)
T…..transport (they move)
name diseases spread by Mosquitoes
- Malaria
- Dengue
- Yellow fever
- Chikungunya
How do the Humming birds make the Hummning sound
They use their wings
How do the rattle snakes make their rattling sound
With their tail
The sound made by elephants is called
Trumpet
How do Crickets make their chirping sound
By rubbing their wings
Young ones of animals are called
Offspring
How do animals give birth to Young ones
- By laying eggs
- Giving birth to live offspring
A male deer is called a
Buck
A female deer is called a
Doe
The young one of a deer is called a
Fawn
Deer gives birth to live offsprings
True or false
True
An elephant lays eggs
True or false
False
An elephant gives birth to live offsprings
Of all the animals in the world which baby animal takes the longest to be born
Elephant
They grow in their mothers bellies for 2 years
The papa elephant is known as a
Bull
The Mama Elephant is known as a
Cow
The Baby elephant is known as a
Calf
Crocodiles lay eggs
True or false
True
name one of the fastest birds
The Bald eagle
The worlds largest bird
Ostrich
Birds have teeth
True or false
False
Birds have a beak
Birds are able to fly because
- They have light weight bodies
- They have hollow bones
- They flap their wings contonously
What is the importance of feathers in a bird
- they help to fly
- keep the birds warm
The pointy part of the bird is the
Beak
What is the importance of the Tail in a bird
It helps the bird balance
Based on the type of food they eat birds are classified as
- Seed eating birds
- fruit eating birds
- Insect eating birds
- nectar eating birds
Name this seed
Golden millet
Name these seeds
Sunflower seeds
The seed eating birds eat which seeds
- Sunflower seeds
- Golden Millets
- Peanuts
Name this bird
American Gold Finch
Name this bird
Blackfaced Waxbill
Name this bird
Common redpoll
Name three seed eating birds
- American Gold Finch
- Blackfaced waxbill
- Common Redpoll
Name this bird
Sunbird
Name this bird
Bananaquit
Name three Nectar eating birds
- Sunbird
- Bananaquit
- Hummingbird
Name some Fruit eating birds
- Parrots
- American Robin
- Wax wing
Name this bird
Wax Wing
Fruit eating birds eat what type of fruits
- Apples
- Oranges
- Cherries
Name this bird
American wood cock
Name this bird
Blackbird
Name three insect eating birds
- Owl
- Blackbird
- American wood cock
These chambers found on tree trunks are called
Cavity Nests
Birds that make cavity nests
- Woodpeckers
- Sparrows
This nest made from large twigs and sticks is called a
Platform Nest
Name this bird
Osprey
These nests made by digging into the ground using their feet and beaks is called
Burrow nest
Birds that live in Burrow nests
Kingfisher
This nest built on the ground from mud, branches, sticks, twigs and leaves is called a
Mound Nest
Birds that make a mound Nest
- Flamingos
- Megapodes
This cup shaped nest made of flexible material mixed with mud and saliva is called
Cup Nest
Name this bird
Canary
Birds that make a cup Nest
- Humming Bird
- Canary
How do most insects move
They walk
Most of the insects are Herbivores
True or False
True
Name an insect who eats other insects
Praying Mantis
Are mosquitoes carnivorous
Yes
They drink blood
Insects live on every habitat on earth
True or False
True
Name this insect
Hornet
Name two insects that live in nests which looks like large paper rolls
- Hornet
- Wasp
These ants live in complicated nests. Name them
Weaver Ants
Name the fly that lives in water
Caddisfly
What is a PLAIN
A falt broad area of land with no hills or mountains
Give an example of a PLAIN
AFRICAN SAVANNAH
How are plains formed
- Volcanic activity
- River activity
Name this animal
Possum
A natural empty space found in the ground, mountain or hill is called
CAVE
This tall wall of rock is called a
Cliff
Name Nine Landforms
- Hills
- Mountains
- cliffs
- canyon
- lakes
- rivers
- oceans
- Streams
A land that is raised and has slopes smaller than a mountain is called a
HILL
This flat high landscape that rises sharply about the surrounding area at least on one side is called
Plateau
A natural rise on the earths surface above the surrounding land is called
This area of lowland between hills or mountains often with a river is called
Valley
Two steep cliffs with a river running through it is called a
Canyon
Hills are bigger than Mountains
True or False
False
Mountains are bigger than Hills
Hills have a gentle slope and mountains have a steeper slope
True or False
True
What is the shape of hill top
Rounded
The shape of the mountain top
Sharp top
Mountain peaks are generally covered with
Snow
Name a major Landform
PLAIN
Name the two type of PLAINS
- LAVA PLAINS
2.. ALLUVIAL PLAINS
3.OUTWASH PLAINS
What is the colour of the LAVA PLAINS
LAVA PLAINS appear darker in colour
How are LAVA PLAINS formed
Formed from volcanic activity with multuple layers of LAVA
How are OUTWASH PLAINS formed
From Glaciers
How are Alluvial PLAINS
When a river deposits its sediments
The sediments of the river is called
ALLUVIUM
Which is a larger water body a river or a lake
A River
Most lakes are surrounded by
Land
Where do most rivers end
In other water bodies like lakes oceans and sea
Which water body has a stronger waterflow
a river or a lake
River
What are the two shapes of the valley
- u shaped valley
- V shaped valley
A large and deep gap between two cliffs is called a
Canyon
Woody plants with mutiple stems close to the ground are called
Shrub
One of the most common tree in Eurpe and North America is
OAK TREE
Plants with a main wood trunk and are much taller are known as
TREES
The fruit of an OAK Tree is known as a
Acorn
Plants with soft delicate stems are called
Herbs
What are Herbs usually grown for
- Food
- Medicine
- Perfume
Give two examples of Herbs
- Basil
- Oregano
A Tiny seed grows into a small plant or a big tree
True or False
True
The seed………..
a) Grows
b) Sprouts
Sprouts
What is GERMINATION
The growth of a plant from a seed is called Germination
Things needed to grow a Plant
- Seed
- soil
- water
- sunlight
The hard protective coat of the seed is called
SEED COAT
What are the parts of a seed
- Seed Coat
- Embryo
- Stored Food
Inside the seed there is a tiny little plant called
EMBRYO
The EMBRYO inside the seed finally grows into
The adult Plant
This tiny plant that develops from the EMBRYO is called
Seedling
Does the size of the plant depend on the size of the seed
NO
The pumpkin seeds are bigger than the apple seeds but the apple tree is much bigger
Give five examples of HERBS
- Basil
- Oregano
- Mint
- Thyme
- parsley
Are shrubs bigger than Herbs and shorter than trees
Yes
Which plants are bushy
Shrubs
Give three examples of Shrubs
- Red raspberry
- Cranberry
- Hibiscus
Tree stems are thick and hard and are called
TRUNKS
Give examples of trees
- Mango
- Coconut
- Pine
Name this tree
Pine Tree
Is Tomato a a herb or a shrub
Herb
When a plant becomes weak and starts bending towards the ground
Wilting
Is Lemon a shrub or a tree
Shrub
Conifers live for hundreds of years
True or False
True
A Plant that retains green leaves throughout the years are called
Evergreens
Give an example of Evergreens
Conifers
Give three characteristics of a Flowering Plant
- Leaves are broad
- They give flowers and fruits
- the seeds are covered
Give three characteristics of a CONIFER
- Leaves are needle shaped
- They produce cones
- seeds are naked
Give one example of a Flowering plant
Sunflower
Give an example of a Conifer
Pine Tree
Conifers are used to make…..
Paper
Name three Carnivorous plants
- Venus Fly Trap
- Sundew
- Pitcher Plant
Name this plant
Pitcher Plant
Name this Plant
Venus Fly trap
Name this plant
Sundew
How does the Venus Fly Trap catch its prey
It senses Touch
How does a Sundew catch its prey
Through its sticky layer
How does the pitcher plant catch its prey
Uses special scents to catch its prey
All the muscles of the body together form the……system
MUSCULAR
Name the bones that protect the Brain
SKULL
The bones that protect the heart and lungs is called
The Ribcage
The bones that protect the intestines are the
Pelvic Bones
What is the importance of Bones
- They give our bodies shape
- They protect the internal organs
Remember FAB SPILL
List the foods that help our bones
- Figs
- Almonds
- Brocolli
- Spinach
- Milk
Name a Mineral that makes the bone strong
Calcium
Name a Vitamin that makes the bone strong
Vitamin D
Where is Vitamin D produced in the body
SKIN
with the help of sunlight
The bones are made up of a protein called
Collagen
The Biggest joint in the human body is the
Knee Joint
The tip of the nose is made up of
a) Bone
b) Cartilage
Cartilage
Our bones stop growing after a certain age
True or False
True
they stop growing by 20
Which part of the bone helps it grow longer
Cartilage
What time of the day are warm up exercises to be done
In the morning
Muscles that we can control are called
Voluntary Muscles
Muscles that are not in our control are called
Involuntary Muscles
The muscles that helps us chew are the
Jaw Muscles
In the body one of the strongest muscles are the
Jaw Muscles
The voluntary muscles are also known as
SKELETAL MUSCLES
Muscles that help us move the food along the digestive system are called
Smooth muscles
Are the smooth muscles voluntary or involuntary muscles
Involuntary Muscles
The hearthas a special type of muscle called the
Cardiac Muscle
Changes where things cannot go back to the way they were are called
IRREVERSIBLE CHANGES
Give five properties of Hard Things
- Hard things cannot bend but shatter
- Cannot change the shape easily when pressure is applied
- Cannot cut
- Cant be scratched but can scratch softer materials
What is an INSOLUBLE SUBSTANCE
Substances that do not mix easily in liquid are called INSOLUBLE SUBSTANCES
Substances that mix easily in liquids are called
Soluble substances
Is paper a Hard material or a soft material
Soft material
Different types of wood have different levels of Hardness
True or false
True
Name the different types of wood
- Pine
- Cherry
- bamboo
- oak
- Teak
What is TEXTURE
The feel and appearance of an object is called Texture
Name four different types of textures
- Rough
- Smooth
- Fuzzy
- Bumpy
Give an example of a SOFT WOOD
Pine
Flowers have a scent called
Floral Scent
Name two Citrus scents
- Lemons
- Oranges
The human ear has three parts. Name them
- Outer Ear
- Middle Ear
- Inner Ear
Other than hearing, the Ear has another important function
Its helps the body to balance
What is an ECOSYSTEM
A specific area which is home to certain creatures and plants is known as a ECOSYSTEM
The ECOSYSTEMS can be on Land or water
True or False
True
From where do the bees make honey
From Nectar
From where do the bees collect the Nectar
From Flowers
What is POLLINATION
The transfer of pollen from one flower to another is called POLLINATION
This very large snake is called the
Anaconda
This very large snake is called the
Anaconda
This very large snake is called the
Anaconda
This very large snake is called the
Anaconda
Where are the Anacondas found
In the Amazon Rain Forest
The Polar Bears are found in which region
Artic Region
Cutting of trees is known as
Deforestation
What is a SHELTER
A place to stay comfortably is called a Shelter
A good shelter stays………and keeps the cold out
Warm
An empty hole in the trunk of a tree is called a
TREE HOLLOW
Squirrels and owls live in a tree hollow
Animals that live in a DEN
- Tigers
- Lions
- wolves
- Bears
Rabbits and Ants live in a
BURROW
This aquatic organism that is found in the water and is green in colour is called
Algae
Which organisms feed on the Algae
Insects
